My Cornishx Bobo stated cluckin about a week ago. The other 7 his age still cheep. He's about 6 weeks or so. I guess since they are designed to mature faster for meat purposes maybe that's why his voice changed first...dunno.

Are mine just late bloomers then? I have 4 7week olds and they peep...much louder now, but no clucks...they started doing a whistling noise, sounds Soooo cute...and my rooster has not even attempted to crow? Sound normal for 7 just about going on 8?